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Post by 84turbo on May 31, 2009 12:13:01 GMT -5
put a stinger fmic in yesterday it fit nice, i put a dypass in at the same time when i took the intake tubing and vam off to fit the bypass i noticed alot of oil in the intake tubing
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Post by Stinger on May 31, 2009 13:07:45 GMT -5
Stock turbo? If so, the valve cover vents into that area...puts oil into the vam hose when the PCV system can't keep up with the pressure in the crankcase/valve cover.
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Post by 84turbo on Jun 1, 2009 21:04:25 GMT -5
ya stock turbo the valve cover does vent to the intake before the turbo but it seemed like alot, could that be a problem
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Post by Stinger on Jun 1, 2009 22:17:10 GMT -5
Well oil doesn't burn all that well so it's certainly not ideal. Ideally you would have a catchcan with a large vent on top and completely revamp the pcv system. You can try venting the hose from the valve cover to atmosphere and see if it blows oil all over or not.
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Post by Strangeleak on Jun 2, 2009 12:54:38 GMT -5
I have the same problem with my N/A engine.
Stinger, when you say "catchcan", are you referring to a hose that goes to a reservoir that catches the vented oil? What would a revamp of the PCV system include? What about just putting a small breather in the valve cover?
Also, is there ever enough positive crankcase pressure in these engines that would require a vacuum pump or tapping into the exhaust system to vent the pressure?
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Post by Stinger on Jun 2, 2009 16:03:00 GMT -5
If a n/a engine is doing it, you just need to replace the pcv valve so it seals properly.
These turbo engines typically produce pretty high crankcase pressure. A vacuum pump can be used (we have on on project bolt on), I plan to use a catchcan setup (defined as you stated above) on my SVO.
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